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Green rectangular circuit board with gold edge contacts and black memory chips on both sides

OWC

OWC 16GB DDR4 2133MHz CL15 1.2V 260pin SODIMM for HP Z1 G3

SKU CH-5E43-PQM4J

16 GB DDR4 SODIMM at 2133 MHz CL15, 1.2 V, built for the HP Z1 Workstation G3

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 16GB capacity expands multitasking headroom for the HP Z1 G3
  • DDR4 2133MHz CL15 timing delivers responsive system performance
  • 2V low-voltage operation reduces power draw and heat
  • 260-pin SODIMM form factor fits the workstation slot directly
  • JEDEC and RoHS compliant for a warranty-safe upgrade

Compatible 16 GB DDR4 SODIMM for HP Z1 G3

This 16 GB DDR4 2133 MHz CL15 SODIMM is built specifically for the HP Z1 Workstation G3. It runs at 1.2 V as an unbuffered non-ECC module with a 2Rx8 rank layout and no heat spreader. The part number is 2S1D42R816GB and it meets JEDEC PC4-17000 specifications.

Check your HP Z1 G3 memory slots before ordering

The system uses 260-pin DDR4 SODIMM slots and requires non-ECC unbuffered memory at 1.2 V. Verify how many slots are free and whether the board can address a 2Rx8 16 GB module. The upgrade is a straightforward DIY install but only fits the G3 workstation model.

Steady throughput under continuous workloads

Rated at DDR4 2133 with CL15 latency, the module maintains its JEDEC timings during extended sessions. Without a heat spreader it relies on case airflow, so sustained multitasking or large-file work stays stable as long as the chassis cooling is adequate. The 2Rx8 organisation helps keep bandwidth consistent over time.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $86.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.44 per GB
Cheaper than about 71% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2S1D42R816 GB
Total capacity16 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP Z1 Workstation G3

Other versions of this model

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Questions about this item

Does the module come as a single 16 GB stick or do I need to buy a second one for dual-channel?

This is a single 16 GB SODIMM. Adding a second identical module will enable dual-channel operation on the Z1 G3.

Is the CL15 2133 MHz variant the only one qualified for the Z1 G3?

The 2133 MHz CL15 1.2 V specification matches the HP Z1 Workstation G3 memory requirement.

What does the 2133 MHz rating actually deliver inside the Z1 G3?

The module runs at 2133 MT/s with CL15 latency at 1.2 V, providing the standard DDR4 bandwidth the workstation expects.

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